1. The problem statement, all variables and given/known data F and G are not 0. F and G are parallel Proof that F X G is=0 Attempt for a sol: F=(a1,b1,c1) G=(a2,b2,c2) FXG=..... But then I don´t know how to show that they are parallel. Or.. Find some numbers for F and G that I know that makes them parallel and show that FXG are=0 But I think I´m not supposed to use numbers, but a,b,c... Would you use either one of theses attempts or not?